Stargate: SG-1 Crossovers
Filters
3.1K | « Prev Page 1 2 3 4 5 12 .. Last Next »

Space Wizards Book 1 : The dawn of the DSF by yoden reviews
A sequel to Esama's "Wizards IN SPACE". As the crew of an alien spaceship, Harry and the DA must make their own place in a world torn by war. Between discovering the secrets of alien tech, creating their own, fighting for survival and building up an international organization, they are up for an interesting year.
Crossover - Harry Potter & Stargate: SG-1 - Rated: T - English - Adventure/Drama - Chapters: 8 - Words: 43,736 - Reviews: 54 - Favs: 222 - Follows: 359 - Updated: 4/16 - Published: 11/11/2020 - Harry P., Albus D.
The Zerg Across the Stargate by Fallenknight88 reviews
40 years before the fall of Ra there was an enemy that even the Goa'uld feared, an Enemy that only know one thing, EVOLVE! this is a Response to CrazedGammaMan1721's challenge. Self Insert; Possible Goa'uld Bashing (Hiatus)
Crossover - Stargate: SG-1 & StarCraft - Rated: T - English - Sci-Fi/Adventure - Chapters: 3 - Words: 7,313 - Reviews: 14 - Favs: 85 - Follows: 97 - Updated: 4/15 - Published: 1/1/2020 - Gen. Hammond, J. O'Neill, OC, Abathur
Dismanteling Destiny II: Reminiscence - The Old, New & Unexpected by ImaliFegen reviews
The Episode rewrite of Ties That Bind, The Powers That Be, Beachhead and Ex Dues Machina. (Full summary for the fic inside.)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 16 - Words: 64,897 - Reviews: 14 - Favs: 1 - Follows: 1 - Updated: 4/14 - Published: 3/6 - Complete
Samantha Carter - Slave of Jabba by Failhammer reviews
After an SG-1 mission went wrong, Sam became Jabba's newest slave. Stranded in the palace, with no idea when or if rescue will arrive, Sam must survive her new circumstances as best she can.
Crossover - Star Wars & Stargate: SG-1 - Rated: T - English - Drama - Chapters: 4 - Words: 12,467 - Reviews: 13 - Favs: 18 - Follows: 23 - Updated: 4/6 - Published: 10/11/2022 - Jabba the Hutt, Oola, S. Carter
Worldwar: Establishing A Balance by AlbertG reviews
Summary-Book IV: Years ago, the Colonials of Cyrannus met the so-called 13th tribe. It didn't work out well. The Colonials met the Race. That didn't work out well either, but they were introduced to a much larger galaxy. Now their errors have come back and they know they are small fish in a large ocean trying to survive. Can they? Will the Race let them?
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi/Adventure - Chapters: 32 - Words: 205,092 - Reviews: 934 - Favs: 587 - Follows: 710 - Updated: 4/5 - Published: 3/6/2016
Dust In The Wind by Moonlight Willows reviews
Going Through A Rewrite. In 8000 BC, Ra's host has always loved his friend Nekta until the Sun God Ra possesses his body. Consumed by another for many decades he forgets everything about his past and only knows the life Ra has given him. Centuries later recollecting what was once lost resurfaces.
Crossover - Stargate: SG-1 & Chronicles of Narnia - Rated: T - English - Sci-Fi/Romance - Chapters: 2 - Words: 6,927 - Reviews: 61 - Favs: 27 - Follows: 18 - Updated: 4/1 - Published: 3/29/2012 - [Ra, OC] [Tirian, Jill Pole]
Disclosure by Red Leader reviews
A certain news organization follow General Carter around for his daily show, A new enemy emerges and captures SG12 and taken them to a galaxy far far away.
Crossover - Stargate: SG-1 & Star Wars - Rated: M - English - Chapters: 15 - Words: 38,276 - Reviews: 28 - Favs: 13 - Follows: 18 - Updated: 3/26 - Published: 2/28
Like Father, Like Son by Bella Gracelyn Prentiss
(one-shot) Ever wondered why Rory dies so many times and still manages to come back? When Rory dies again, he meets Oma Desala who arranges a meeting between both father and son. How will Rory feel about meeting his biological father? Will Rory learn about his biological mother's identity and why he was given up?
Crossover - Doctor Who & Stargate: SG-1 - Rated: K+ - English - Sci-Fi/Family - Chapters: 1 - Words: 1,071 - Favs: 1 - Follows: 1 - Published: 3/24 - Rory W., D. Jackson - Complete
Harry Potter and the Enforced Holiday by tscchope reviews
Harry is sent on holiday and meets Jack O'Neill. I've switched Bane and Secrets episode order, but had Sam learn of her father's illness. Set after the Battle of Hogwarts and follows the crapilogue, somewhat. Jack and Sam will be getting together. For Jack it's sort of a family tradition, for Sam it's her dad's imminent demise that forces her to think about being a mother.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Sci-Fi/Family - Chapters: 3 - Words: 16,864 - Reviews: 16 - Favs: 72 - Follows: 142 - Updated: 3/22 - Published: 2/14 - S. Carter, J. O'Neill, Harry P., Hermione G.
A Brutal Truth REWRITE by ReadyAimWait reviews
ADOPTED FROM BIG Z1776: When the Twelve Colonies and Earth are brought together through a technical fluke some may wish the fluke had not occurred at all. Because with two great spacefaring powers not everything can end well for both of them.
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Adventure/Sci-Fi - Chapters: 25 - Words: 166,395 - Reviews: 292 - Favs: 307 - Follows: 464 - Updated: 3/21 - Published: 10/6/2021
Requiem VI by bearhug562000
As our heroes close in on the final solution to defeating the Darkness and its dead hordes, they are unaware that their enemies are hot on their respective tails!
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: M - English - Fantasy/Sci-Fi - Chapters: 3 - Words: 5,075 - Updated: 3/20 - Published: 1/6 - Buffy S., Faith L., J. O'Neill, Teal'c
Beginning a New Path by stargatesg1fan1 reviews
Massive multiverse crossover between Harry Potter/Buffy/Stargate/Star Trek Enterprise/X-Men/Fantastic Four/Iron Man/Highlander/Justice League/Underworld/Star Wars and More in that order. Harry Potter is the main character. Full summary inside. Non-Traditional-Harem, Builds up to Awesome Power Harry. 1 Million Words. 150 Smut Scenes (Very Sensual Story).
Crossover - Stargate: SG-1 & Harry Potter - Rated: M - English - Sci-Fi/Adventure - Chapters: 115 - Words: 1,105,709 - Reviews: 3001 - Favs: 3,107 - Follows: 2,712 - Updated: 3/19 - Published: 6/18/2010 - S. Carter, Harry P.
Harry Headlines At Glastonbury by tyrannicpuppy reviews
Since the war, Harry has taken to exploring long-forgotten places as a chance to escape his extensive and unwanted fame. But what he found in the depths of Glastonbury Tor will change not only his own life, but the future of all.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Sci-Fi - Chapters: 39 - Words: 259,511 - Reviews: 891 - Favs: 2,437 - Follows: 3,391 - Updated: 3/16 - Published: 10/1/2021 - [Harry P., Hermione G.] Luna L., Merlin
How You Play by Tanista2
It's time for war games to resume at the New Earth SGC. But who will be the last man (or woman) standing? (Ad Astra 'verse)
Crossover - Stargate: SG-1 & MacGyver - Rated: T - English - Humor - Chapters: 1 - Words: 6,229 - Published: 3/13 - D. Jackson, J. O'Neill, MacGyver, OC - Complete
Fleet of the Homeword Bound: Battle of Antartica by Sora with an S reviews
With Anubis due to arrive any minute, Stargate Command are not in the mood for anything else going wrong. A bunch of fictional starships showing up as a bunch of shipgirls certainly qualifies.
Crossover - Stargate: SG-1 & TV X-overs - Rated: T - English - Adventure/Sci-Fi - Chapters: 7 - Words: 40,181 - Reviews: 19 - Favs: 64 - Follows: 80 - Updated: 3/9 - Published: 4/8/2022 - Gen. Hammond, Elizabeth Weir
The restoration of the UNSC by Warwolff2003 reviews
Reach has Fallen and the newly promoted Captain Jacob Keyes has taken his small fleet and st course for Earth. However, this is not the Earth those in the UNSC remember. This is my version of a similar story by originally by Samsara Sage which was adopted by Ultimate Deathsaurer 2
Crossover - Stargate: SG-1 & Halo - Rated: T - English - Sci-Fi - Chapters: 12 - Words: 43,659 - Reviews: 97 - Favs: 177 - Follows: 260 - Updated: 3/5 - Published: 12/22/2022 - S. Carter, J. O'Neill, Master Chief/John-117, J. Keyes
A Legacy of Chaos: A Ship of Line Story by andrewjameswilliams reviews
In the aftermath of Ethan Rayne's spell Xander Harris finds himself transformed into a capsuleer and finds himself drawn into the battle between Stargate Command and the Goa'uld Empire. *Chapter one edited.*
Crossover - Buffy: The Vampire Slayer & Stargate: SG-1 - Rated: T - English - Sci-Fi/Adventure - Chapters: 15 - Words: 86,539 - Reviews: 290 - Favs: 849 - Follows: 1,044 - Updated: 3/2 - Published: 3/20/2020
MoonGate by Antonio Cabanas reviews
When two members of an SG team end in the Moon Palace things start to go sideways...
Crossover - Sailor Moon & Stargate: SG-1 - Rated: K+ - English - Adventure - Chapters: 2 - Words: 5,606 - Reviews: 1 - Favs: 13 - Follows: 17 - Updated: 3/1 - Published: 2/3 - Haruka T./Sailor Uranus, Rei H./Raye/Sailor Mars, S. Carter, J. O'Neill
Bound By Destiny by JacGoBama16 reviews
The Colonials discover they are not alone in the Universe. As the SGC races against time to find the Lost city of the Ancients, the Colonials erupt onto the Galactic stage with a tenacious fury unlike anything the Galaxy has seen. Destinies decided thousands of years ago begin to become clear as other forces watch from afar
Crossover - Stargate: SG-1 & Battlestar Galactica: 2003 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 39,428 - Reviews: 25 - Favs: 72 - Follows: 93 - Published: 2/26
Stargate SG-1: The Fifth Race by i-defy-fate reviews
AU! Heavily inspired by the story: Project Blue Book by AmeliusTheAlteran. Elements of Halo will be here as well because I love the design of the ships, weapons and equipment they use. This is a story of what a united earth could accomplish when given a common goal. I plan for this to be at least 200-250K words. Starting chapter 2 expect to see 10k words per chapter. No pairings!
Crossover - Stargate: SG-1 & Halo - Rated: M - English - Adventure/Sci-Fi - Chapters: 2 - Words: 10,274 - Reviews: 20 - Favs: 99 - Follows: 137 - Updated: 2/26 - Published: 11/23/2019 - S. Carter, D. Jackson, J. O'Neill, Teal'c
Dismantling Destiny I: Ends, Transitions & New Beginnings by ImaliFegen reviews
This is a time travel fix-it for SGA S5E19 -'Vegas' crossed over with Stargate SG1 S9 & S10. (See full summary inside.)
Crossover - Stargate: SG-1 & Stargate: Atlantis - Rated: T - English - Adventure/Romance - Chapters: 20 - Words: 61,550 - Reviews: 18 - Favs: 6 - Follows: 7 - Updated: 2/25 - Published: 1/27 - C. Mitchell, John S. - Complete
A Veiled Escape by TannaraMoonvale reviews
The war was over, the light lost. Few of the Light remain. Hermione spent her time studying the Veil, trying to unravel it's mysteries in hope it could help them escape.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 5,413 - Reviews: 12 - Favs: 49 - Follows: 45 - Published: 2/24 - S. Carter, J. O'Neill, Harry P., Hermione G. - Complete
Ancient Legos by TCGM reviews
This is a Crackfic, meaning the story is not intended to be taken seriously. Ancient Legos is written for laughs and humor. A Self Insert story, Weldon is a teenager living in Brockton Bay on Earth Bet. Somehow without triggering, he starts getting... Ideas. Features Lego Spaceships. T because of light, Worm-style swearing and a comfy chair joke.
Crossover - Stargate: SG-1 & Worm - Rated: T - English - Chapters: 16 - Words: 72,871 - Reviews: 414 - Favs: 1,354 - Follows: 1,544 - Updated: 2/21 - Published: 10/28/2017
Through the gate by Asla reviews
Harry Potter thought he had seen it all: magical creatures, hidden worlds, and dangerous adventures. But nothing prepared him for what he would encounter when he stepped through the Stargate.
Crossover - Stargate: SG-1 & Harry Potter - Rated: T - English - Chapters: 1 - Words: 5,565 - Reviews: 2 - Favs: 60 - Follows: 95 - Published: 2/20
The Pioneer's Frontier by Left for Space reviews
Not worth reading, need a lot of work. Just an outline.
Crossover - Stargate: SG-1 & Harry Potter - Rated: K+ - English - Sci-Fi - Chapters: 7 - Words: 3,941 - Reviews: 1 - Favs: 8 - Follows: 13 - Published: 2/13
3.1K | « Prev Page 1 2 3 4 5 12 .. Last Next »